./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c -s /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 ..................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c -s /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 ...................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 10:28:29,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:28:29,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:28:29,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:28:29,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:28:29,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:28:29,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:28:29,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:28:29,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:28:29,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:28:29,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:28:29,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:28:29,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:28:29,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:28:29,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:28:29,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:28:29,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:28:29,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:28:29,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:28:29,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:28:29,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:28:29,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:28:29,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:28:29,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:28:29,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:28:29,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:28:29,485 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:28:29,486 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:28:29,487 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:28:29,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:28:29,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:28:29,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:28:29,491 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:28:29,492 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:28:29,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:28:29,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:28:29,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:28:29,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:28:29,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:28:29,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:28:29,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:28:29,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 10:28:29,527 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:28:29,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:28:29,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:28:29,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:28:29,528 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:28:29,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:28:29,529 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:28:29,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:28:29,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:28:29,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:28:29,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:28:29,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:28:29,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:28:29,530 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:28:29,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:28:29,531 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:28:29,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:28:29,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:28:29,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:28:29,532 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:28:29,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:28:29,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:28:29,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:28:29,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:28:29,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:28:29,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:28:29,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 10:28:29,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:28:29,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 [2019-11-20 10:28:29,754 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:28:29,780 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:28:29,785 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:28:29,787 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:28:29,788 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:28:29,791 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2019-11-20 10:28:29,876 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/data/234202645/0b7d69070e9f44b7827bf78754013b55/FLAGba9aae908 [2019-11-20 10:28:30,377 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:28:30,378 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2019-11-20 10:28:30,384 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/data/234202645/0b7d69070e9f44b7827bf78754013b55/FLAGba9aae908 [2019-11-20 10:28:30,715 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/data/234202645/0b7d69070e9f44b7827bf78754013b55 [2019-11-20 10:28:30,718 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:28:30,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:28:30,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:28:30,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:28:30,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:28:30,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:28:30" (1/1) ... [2019-11-20 10:28:30,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@329c86bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:30, skipping insertion in model container [2019-11-20 10:28:30,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:28:30" (1/1) ... [2019-11-20 10:28:30,735 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:28:30,764 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:28:31,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:28:31,123 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:28:31,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:28:31,189 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:28:31,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:31 WrapperNode [2019-11-20 10:28:31,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:28:31,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:28:31,192 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:28:31,192 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:28:31,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:31" (1/1) ... [2019-11-20 10:28:31,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:31" (1/1) ... [2019-11-20 10:28:31,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:28:31,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:28:31,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:28:31,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:28:31,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:31" (1/1) ... [2019-11-20 10:28:31,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:31" (1/1) ... [2019-11-20 10:28:31,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:31" (1/1) ... [2019-11-20 10:28:31,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:31" (1/1) ... [2019-11-20 10:28:31,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:31" (1/1) ... [2019-11-20 10:28:31,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:31" (1/1) ... [2019-11-20 10:28:31,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:31" (1/1) ... [2019-11-20 10:28:31,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:28:31,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:28:31,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:28:31,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:28:31,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:28:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:28:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 10:28:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 10:28:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 10:28:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:28:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:28:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 10:28:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 10:28:31,875 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:28:31,875 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-20 10:28:31,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:28:31 BoogieIcfgContainer [2019-11-20 10:28:31,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:28:31,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:28:31,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:28:31,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:28:31,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:28:30" (1/3) ... [2019-11-20 10:28:31,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1263783b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:28:31, skipping insertion in model container [2019-11-20 10:28:31,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:31" (2/3) ... [2019-11-20 10:28:31,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1263783b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:28:31, skipping insertion in model container [2019-11-20 10:28:31,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:28:31" (3/3) ... [2019-11-20 10:28:31,895 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051.c [2019-11-20 10:28:31,906 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:28:31,912 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 10:28:31,921 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 10:28:31,951 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:28:31,951 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:28:31,951 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:28:31,951 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:28:31,952 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:28:31,952 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:28:31,952 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:28:31,952 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:28:31,967 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-20 10:28:31,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 10:28:31,973 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:28:31,974 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:28:31,974 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:28:31,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:28:31,979 INFO L82 PathProgramCache]: Analyzing trace with hash -2022266355, now seen corresponding path program 1 times [2019-11-20 10:28:31,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:28:31,987 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898371569] [2019-11-20 10:28:31,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:28:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:28:32,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:28:32,106 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898371569] [2019-11-20 10:28:32,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:28:32,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:28:32,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873980004] [2019-11-20 10:28:32,112 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 10:28:32,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:28:32,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 10:28:32,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 10:28:32,125 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-11-20 10:28:32,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:28:32,145 INFO L93 Difference]: Finished difference Result 50 states and 76 transitions. [2019-11-20 10:28:32,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 10:28:32,146 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 10:28:32,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:28:32,155 INFO L225 Difference]: With dead ends: 50 [2019-11-20 10:28:32,156 INFO L226 Difference]: Without dead ends: 23 [2019-11-20 10:28:32,159 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 10:28:32,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-20 10:28:32,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-20 10:28:32,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-20 10:28:32,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2019-11-20 10:28:32,191 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 10 [2019-11-20 10:28:32,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:28:32,191 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2019-11-20 10:28:32,192 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 10:28:32,192 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2019-11-20 10:28:32,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 10:28:32,193 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:28:32,193 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:28:32,193 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:28:32,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:28:32,194 INFO L82 PathProgramCache]: Analyzing trace with hash -62606256, now seen corresponding path program 1 times [2019-11-20 10:28:32,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:28:32,194 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128394309] [2019-11-20 10:28:32,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:28:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:28:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:28:32,339 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:28:32,339 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 10:28:32,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:28:32 BoogieIcfgContainer [2019-11-20 10:28:32,375 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:28:32,375 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:28:32,375 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:28:32,376 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:28:32,376 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:28:31" (3/4) ... [2019-11-20 10:28:32,381 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 10:28:32,381 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:28:32,384 INFO L168 Benchmark]: Toolchain (without parser) took 1663.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -116.3 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2019-11-20 10:28:32,384 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:28:32,385 INFO L168 Benchmark]: CACSL2BoogieTranslator took 470.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -173.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:28:32,386 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:28:32,386 INFO L168 Benchmark]: Boogie Preprocessor took 41.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:28:32,387 INFO L168 Benchmark]: RCFGBuilder took 584.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. [2019-11-20 10:28:32,388 INFO L168 Benchmark]: TraceAbstraction took 496.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:28:32,389 INFO L168 Benchmark]: Witness Printer took 5.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-20 10:28:32,393 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 470.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -173.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 584.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 496.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 71]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someBinaryArithmeticFLOAToperation at line 66, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; VAL [huge_floor=1000000000000000000000000000000] [L66] float x = 0.0f / 0.0f; [L15] __int32_t i0, j0; [L16] __uint32_t i, ix; VAL [huge_floor=1000000000000000000000000000000] [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (i0) = gf_u.word [L22] ix = (i0 & 0x7fffffff) [L23] j0 = (ix >> 23) - 0x7f VAL [huge_floor=1000000000000000000000000000000] [L24] COND FALSE !(j0 < 23) VAL [huge_floor=1000000000000000000000000000000] [L44] COND FALSE !(!((ix) < 0x7f800000L)) [L47] return x; VAL [huge_floor=1000000000000000000000000000000] [L67] float res = floor_float(x); [L58] return x != x; VAL [huge_floor=1000000000000000000000000000000] [L70] COND TRUE !isnan_float(res) [L71] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 10:28:34,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:28:34,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:28:34,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:28:34,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:28:34,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:28:34,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:28:34,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:28:34,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:28:34,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:28:34,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:28:34,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:28:34,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:28:34,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:28:34,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:28:34,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:28:34,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:28:34,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:28:34,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:28:34,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:28:34,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:28:34,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:28:34,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:28:34,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:28:34,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:28:34,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:28:34,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:28:34,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:28:34,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:28:34,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:28:34,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:28:34,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:28:34,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:28:34,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:28:34,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:28:34,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:28:34,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:28:34,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:28:34,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:28:34,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:28:34,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:28:34,808 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 10:28:34,834 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:28:34,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:28:34,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:28:34,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:28:34,838 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:28:34,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:28:34,839 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:28:34,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:28:34,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:28:34,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:28:34,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:28:34,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:28:34,842 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 10:28:34,842 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 10:28:34,842 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:28:34,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:28:34,843 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:28:34,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:28:34,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:28:34,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:28:34,844 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:28:34,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:28:34,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:28:34,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:28:34,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:28:34,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:28:34,846 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 10:28:34,847 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 10:28:34,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:28:34,847 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 10:28:34,848 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 [2019-11-20 10:28:35,212 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:28:35,234 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:28:35,238 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:28:35,240 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:28:35,241 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:28:35,242 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2019-11-20 10:28:35,325 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/data/fcd20d4d4/6aab36d4418946b1a096463e45a9eeda/FLAGace3e24cb [2019-11-20 10:28:35,773 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:28:35,773 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2019-11-20 10:28:35,781 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/data/fcd20d4d4/6aab36d4418946b1a096463e45a9eeda/FLAGace3e24cb [2019-11-20 10:28:36,151 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/data/fcd20d4d4/6aab36d4418946b1a096463e45a9eeda [2019-11-20 10:28:36,154 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:28:36,156 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:28:36,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:28:36,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:28:36,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:28:36,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:28:36" (1/1) ... [2019-11-20 10:28:36,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e14322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:36, skipping insertion in model container [2019-11-20 10:28:36,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:28:36" (1/1) ... [2019-11-20 10:28:36,175 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:28:36,201 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:28:36,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:28:36,409 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:28:36,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:28:36,507 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:28:36,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:36 WrapperNode [2019-11-20 10:28:36,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:28:36,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:28:36,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:28:36,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:28:36,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:36" (1/1) ... [2019-11-20 10:28:36,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:36" (1/1) ... [2019-11-20 10:28:36,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:28:36,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:28:36,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:28:36,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:28:36,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:36" (1/1) ... [2019-11-20 10:28:36,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:36" (1/1) ... [2019-11-20 10:28:36,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:36" (1/1) ... [2019-11-20 10:28:36,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:36" (1/1) ... [2019-11-20 10:28:36,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:36" (1/1) ... [2019-11-20 10:28:36,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:36" (1/1) ... [2019-11-20 10:28:36,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:36" (1/1) ... [2019-11-20 10:28:36,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:28:36,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:28:36,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:28:36,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:28:36,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:28:36,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:28:36,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-20 10:28:36,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 10:28:36,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:28:36,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:28:36,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-20 10:28:36,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 10:28:36,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 10:28:37,394 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:28:37,394 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-20 10:28:37,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:28:37 BoogieIcfgContainer [2019-11-20 10:28:37,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:28:37,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:28:37,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:28:37,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:28:37,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:28:36" (1/3) ... [2019-11-20 10:28:37,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1748e31a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:28:37, skipping insertion in model container [2019-11-20 10:28:37,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:28:36" (2/3) ... [2019-11-20 10:28:37,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1748e31a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:28:37, skipping insertion in model container [2019-11-20 10:28:37,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:28:37" (3/3) ... [2019-11-20 10:28:37,404 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051.c [2019-11-20 10:28:37,413 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:28:37,419 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 10:28:37,431 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 10:28:37,456 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:28:37,456 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:28:37,456 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:28:37,457 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:28:37,457 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:28:37,457 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:28:37,457 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:28:37,457 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:28:37,473 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-20 10:28:37,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 10:28:37,479 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:28:37,480 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:28:37,480 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:28:37,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:28:37,485 INFO L82 PathProgramCache]: Analyzing trace with hash -2022266355, now seen corresponding path program 1 times [2019-11-20 10:28:37,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:28:37,497 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320500471] [2019-11-20 10:28:37,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-20 10:28:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:28:37,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 10:28:37,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:28:37,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:28:37,600 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:28:37,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:28:37,607 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320500471] [2019-11-20 10:28:37,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:28:37,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 10:28:37,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862588690] [2019-11-20 10:28:37,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 10:28:37,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:28:37,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 10:28:37,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 10:28:37,630 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-11-20 10:28:37,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:28:37,647 INFO L93 Difference]: Finished difference Result 50 states and 76 transitions. [2019-11-20 10:28:37,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 10:28:37,648 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 10:28:37,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:28:37,660 INFO L225 Difference]: With dead ends: 50 [2019-11-20 10:28:37,660 INFO L226 Difference]: Without dead ends: 23 [2019-11-20 10:28:37,663 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 10:28:37,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-20 10:28:37,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-20 10:28:37,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-20 10:28:37,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2019-11-20 10:28:37,696 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 10 [2019-11-20 10:28:37,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:28:37,696 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2019-11-20 10:28:37,696 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 10:28:37,696 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2019-11-20 10:28:37,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 10:28:37,697 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:28:37,697 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:28:37,899 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 10:28:37,899 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:28:37,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:28:37,900 INFO L82 PathProgramCache]: Analyzing trace with hash -62606256, now seen corresponding path program 1 times [2019-11-20 10:28:37,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:28:37,901 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505264636] [2019-11-20 10:28:37,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-20 10:28:37,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:28:37,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 10:28:37,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:28:38,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:28:38,083 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:28:38,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:28:38,158 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505264636] [2019-11-20 10:28:38,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:28:38,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-20 10:28:38,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419997152] [2019-11-20 10:28:38,162 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 10:28:38,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:28:38,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 10:28:38,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-20 10:28:38,164 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand 8 states. [2019-11-20 10:28:38,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:28:38,574 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2019-11-20 10:28:38,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 10:28:38,575 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-20 10:28:38,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:28:38,576 INFO L225 Difference]: With dead ends: 34 [2019-11-20 10:28:38,576 INFO L226 Difference]: Without dead ends: 18 [2019-11-20 10:28:38,577 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-20 10:28:38,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-20 10:28:38,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-20 10:28:38,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 10:28:38,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-11-20 10:28:38,581 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2019-11-20 10:28:38,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:28:38,582 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-11-20 10:28:38,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 10:28:38,582 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-11-20 10:28:38,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 10:28:38,583 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:28:38,583 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:28:38,784 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 10:28:38,784 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:28:38,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:28:38,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1612289523, now seen corresponding path program 1 times [2019-11-20 10:28:38,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:28:38,786 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270744941] [2019-11-20 10:28:38,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-20 10:28:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:28:38,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 10:28:38,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:28:38,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:28:38,961 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:28:39,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:28:39,095 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270744941] [2019-11-20 10:28:39,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:28:39,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 10:28:39,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643308494] [2019-11-20 10:28:39,097 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 10:28:39,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:28:39,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 10:28:39,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-20 10:28:39,098 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 8 states. [2019-11-20 10:28:39,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:28:39,196 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-11-20 10:28:39,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 10:28:39,197 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-20 10:28:39,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:28:39,197 INFO L225 Difference]: With dead ends: 18 [2019-11-20 10:28:39,197 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 10:28:39,198 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-20 10:28:39,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 10:28:39,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 10:28:39,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 10:28:39,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 10:28:39,200 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-20 10:28:39,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:28:39,200 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:28:39,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 10:28:39,200 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 10:28:39,201 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 10:28:39,401 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 10:28:39,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 10:28:39,491 INFO L444 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2019-11-20 10:28:39,491 INFO L444 ceAbstractionStarter]: For program point L44(lines 44 47) no Hoare annotation was computed. [2019-11-20 10:28:39,492 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 10:28:39,492 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 10:28:39,492 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 10:28:39,492 INFO L444 ceAbstractionStarter]: For program point L24(lines 24 48) no Hoare annotation was computed. [2019-11-20 10:28:39,492 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 71) no Hoare annotation was computed. [2019-11-20 10:28:39,492 INFO L444 ceAbstractionStarter]: For program point L49(lines 49 53) no Hoare annotation was computed. [2019-11-20 10:28:39,493 INFO L444 ceAbstractionStarter]: For program point L49-1(lines 14 55) no Hoare annotation was computed. [2019-11-20 10:28:39,493 INFO L444 ceAbstractionStarter]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2019-11-20 10:28:39,493 INFO L444 ceAbstractionStarter]: For program point L70(lines 70 73) no Hoare annotation was computed. [2019-11-20 10:28:39,493 INFO L444 ceAbstractionStarter]: For program point L37(lines 37 41) no Hoare annotation was computed. [2019-11-20 10:28:39,493 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 10:28:39,493 INFO L444 ceAbstractionStarter]: For program point L29(lines 29 31) no Hoare annotation was computed. [2019-11-20 10:28:39,494 INFO L440 ceAbstractionStarter]: At program point L58(line 58) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= |ULTIMATE.start_floor_float_#res| .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ULTIMATE.start_floor_float_~x .cse0))) [2019-11-20 10:28:39,494 INFO L444 ceAbstractionStarter]: For program point L25(lines 25 42) no Hoare annotation was computed. [2019-11-20 10:28:39,494 INFO L440 ceAbstractionStarter]: At program point L54(lines 14 55) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= |ULTIMATE.start_floor_float_#res| .cse0) (= ULTIMATE.start_floor_float_~x .cse0))) [2019-11-20 10:28:39,495 INFO L444 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2019-11-20 10:28:39,495 INFO L440 ceAbstractionStarter]: At program point L17-2(lines 17 21) the Hoare annotation is: (= ULTIMATE.start_floor_float_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2019-11-20 10:28:39,495 INFO L444 ceAbstractionStarter]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2019-11-20 10:28:39,495 INFO L447 ceAbstractionStarter]: At program point L75(lines 60 76) the Hoare annotation is: true [2019-11-20 10:28:39,496 INFO L444 ceAbstractionStarter]: For program point L71(line 71) no Hoare annotation was computed. [2019-11-20 10:28:39,496 INFO L444 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-11-20 10:28:39,496 INFO L444 ceAbstractionStarter]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2019-11-20 10:28:39,496 INFO L444 ceAbstractionStarter]: For program point L26(lines 26 32) no Hoare annotation was computed. [2019-11-20 10:28:39,496 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2019-11-20 10:28:39,506 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 10:28:39,511 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 10:28:39,513 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 10:28:39,513 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 10:28:39,517 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 10:28:39,518 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 10:28:39,521 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 10:28:39,521 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 10:28:39,522 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 10:28:39,522 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 10:28:39,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:28:39 BoogieIcfgContainer [2019-11-20 10:28:39,529 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:28:39,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:28:39,530 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:28:39,530 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:28:39,531 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:28:37" (3/4) ... [2019-11-20 10:28:39,546 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 10:28:39,570 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-20 10:28:39,571 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 10:28:39,571 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 10:28:39,616 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-20 10:28:39,618 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-20 10:28:39,669 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_556e524e-035b-4952-b97f-cbb727482103/bin/uautomizer/witness.graphml [2019-11-20 10:28:39,670 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:28:39,672 INFO L168 Benchmark]: Toolchain (without parser) took 3515.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -61.0 MB). Peak memory consumption was 85.8 MB. Max. memory is 11.5 GB. [2019-11-20 10:28:39,673 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:28:39,674 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.75 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:28:39,677 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -185.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:28:39,678 INFO L168 Benchmark]: Boogie Preprocessor took 56.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:28:39,678 INFO L168 Benchmark]: RCFGBuilder took 711.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 10:28:39,679 INFO L168 Benchmark]: TraceAbstraction took 2132.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 95.4 MB). Peak memory consumption was 95.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:28:39,679 INFO L168 Benchmark]: Witness Printer took 139.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:28:39,684 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 350.75 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 118.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -185.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 711.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2132.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 95.4 MB). Peak memory consumption was 95.4 MB. Max. memory is 11.5 GB. * Witness Printer took 139.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 71]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant [2019-11-20 10:28:39,702 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 10:28:39,703 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 58]: Loop Invariant [2019-11-20 10:28:39,703 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 10:28:39,704 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 10:28:39,704 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 10:28:39,705 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant [2019-11-20 10:28:39,706 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 10:28:39,706 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 10:28:39,706 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 10:28:39,707 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 19 SDslu, 66 SDs, 0 SdLazy, 49 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 36 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 2 QuantifiedInterpolants, 2748 SizeOfPredicates, 15 NumberOfNonLiveVariables, 98 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...